FLORIDA — Fire is used as a healthy forest management tool in Florida, including here in Northwest Florida.
You’ve probably seen it. These prescribed fires, also known as prescribed burns, are defined by the USDA Forest Service as “The controlled application of fire by a team of fire experts under specified weather conditions to restore health to ecosystems that depend on fire.”
Without prescribed burns, flammable fuels build up on the forest floor and become hazardous, and invasive species become established while fire-dependent native species disappear.
This negatively impacts the entire forest ecosystem and surrounding areas.
In addition, University of Florida scientists say important pollinators survive the temporary displacement of a prescribed fire, while disease-carrying ticks often do not.
The following was written by Kirsten Romaguera Rabin, public relations specialist with UF/IFAS Communications, and is shared in this article with her permission.
“Bees that use forests as habitat either burrow underground or fly out of the fire, and later they benefit from the renewed pollination resources that then have the space to regrow,” said Raelene Crandall, associate professor in the UF/IFAS School of Forest, Fisheries, and Geomatics Sciences.
“But ticks need to catch a ride out of the forest, or they can’t escape the flames.”
The document “Bees and Fire: How does Fire in Longleaf Pine Savannas Affect Bee Communities?” summarizes a collection of studies that explain how bees benefit from fires.
Bee death during fire is rare, the document notes, and as the burned area rebounds, the natural flower diversity increases within several months.
Ticks, on the other hand, can be controlled with fire. In the document “Prescribed fire as a tool for controlling tick populations in the southeastern United States,” Crandall finds compelling reasons to use prescribed fire to intentionally suppress the population of disease-carrying ticks.
It wouldn’t eradicate them, but any survivors would also continue to feed opossums, turkeys, and other animals one link up the food chain.
“The temperature alone can kill the ticks directly,” said Crandall, who also provided the illustrations in both documents.
“But it’s also leaving behind a more open canopy that doesn’t provide a favorable habitat for ticks.”
Florida is seen as a national leader for its prescribed burning efforts, which counter its propensity for lightning strikes and other wildfire threats. But Crandall said the pair of documents tell more of the story, with prescribed fire benefiting the whole forest.
“Prescribed fire is fundamentally changing the ecosystem with a preference toward pollinators instead of ticks,” Crandall said.
“That’s important as bees are vital to the regeneration of the forest, as well.”
Larry Williams is the Extension horticulture agent with the Okaloosa County Cooperative Extension Service, University of Florida. Contact Larry at 689-5850 or email [email protected].
